Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e92d77f2b256196…

MALICIOUS

PDF

39.0 KB Created: 2020-08-20 02:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 910664aa5ec556d1bcacdf0006acd607 SHA-1: db90100d2bb22b826dcf4cd7a8a4d7248cc44f76 SHA-256: 2e92d77f2b2561962aaa1021d415226a9e31cb9ef1b9ede2f8b80ed731ab8f0e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body itself is largely unreadable, but the presence of the redirector URL and the heuristic firings strongly suggest a phishing or malware delivery attempt. The file also contains a link farm of SEO-optimized PDFs, likely intended to obscure the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=change+data+capture+in+informatica+powercenter In PDF document text
    • http://files.wacoceg.org/uploads/1/3/1/3/131378993/zasezapekaluvexim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/37033819100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/vixupal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/bafg_antrag_hamburg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7932/0223/files/qed_beauty_in_mathematical_proof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7692/5078/files/chicago_manual_of_style_citation_primary_source.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/capitation_rate_calculation_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/pirepixawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/27558210052.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5976 5356 bytes
SHA-256: 7a111c63f54c3029214e4ad28878239ca38aeb243be14aae43f8b2a31131ba78
font_01_sfnt_off00006b96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B96 10540 bytes
SHA-256: 56ffa0b233d170a5c4470d2266d63bafb04b66026cfe5cbc59035a1da5595259

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